| Topic |
Activities |
Downloads |
| Mystery Powder Lab |
Begin the Mystery Powder Lab, in which they practice making predictions and hypotheses, practice distinguishing between physical and chemical properties. |
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| Variables |
Students take notes on the three kinds of variables and practice identifying variables by reading brief descriptions of scientific investigations. Students complete the Mystery Powder Lab, in which they design a procedure, based upon their background research, to determine the content of several mystery powders. |
 Variables wkst.doc
 Variables.ppt
|
| Variables and Experimental Design |
Notes on constructing a fair test. A challenge is posed to the group, to determine a procedure that could be performed in-class to find out what physical or chemical property determines whether something will or will not float. |
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| Significant Figures |
Whole group correction of variables worksheet. Students are given rules for identifying sig figs in a single number. Students make up and solve their own problems, then administer them to each other. |
sigfigs.ppt
sig fig worksheet.doc
|
| Significant Figures |
Students are instructed on the use of significant figures when mathematic operations become involved. Go through the problems on the handout as a whole group, using whiteboards. Students work on practice problems in multiple contexts - whole group guided, then whole group unguided, then in pairs. |
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